Hunting / Foraging / Fishing / Adventurous Food in Iowa and Missouri

I’m working for a documentary filmmaker who will be embarking on a six month “real food road trip” in May. After having filmed a year’s worth of weekly online episodes about socially responsible and adventurous eating in Minnesota, he will be taking the concept nationally and hopes to meet with farmers, small-scale food producers, urban gardeners, hunters, foragers, and fishermen on his travels. Right now, we’re especially looking for suggestions for episode ideas regarding hunting / foraging / invasive species / unique people in Iowa and Missouri. Any suggestions on where to start – people / organizations to get in touch with, experiences not to miss out on? He will be in these states during the month of May. Thank you!